<!DOCTYPE html>
<html>
	<head>
		<title>二维码</title>
		<meta charset="UTF-8"/>
		<meta http-equiv="pragma" content="no-cache"/>
		<meta http-equiv="Cache-Control" content="no-cache, must-revalidate"/>
		<meta name="Keywords" content="keyword1,keyword2,keyword3"/>
		<meta name="Description" content="网页信息的描述" />
		<meta name="Author" content="itcast.cn" />
		<meta name="Copyright" content="All Rights Reserved." />
		<link rel="shortcut icon" type="image/x-icon" href="itcast.ico"/>
		<link rel="stylesheet" type="text/css" href="default.css"/>
		<style type="text/css">
			body{
				background-color : black;
			}
		</style>
	</head>
	<body>
		<img alt="二维码" src="barcode?url=http://www.baidu.com" width="250" height="250"/>
	</body>
</html>